That dry dog food is not very healthy for dogs. Junk from closest slaughter-house they burn or sell for penny to the dry dog food manufacturers is much better for them. Also, you need to provide a sufficient water supply along with dry dog food. Hardly they think about that. In winter dogs could eat snow, but what about summer?

From the other side, roaming dogs did not appear from nowhere. Their source is abandoned pets people throw out due to different circumstances, including poverty created by elites.